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| Criterion |  UX Research Usability Testing |  Architecture C4 Model |  UX Research First-click Testing |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | When a product is built but people get stuck on tasks, usability testing shows the friction at concrete points. Observed use instead of self-report makes visible where orientation, understanding, or interaction breaks down. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | When users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-2 h je Session | 1-4 h | 1-2 Tage | 1-2 Tage |
Participantsdifferent | Based on research question | 1-5 | 10-30 | 1-4 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Usability Issues, Severity List, Recommendations | Context Diagram, Container Diagram, Component Diagram | Click Heatmap, Success Rate, Design Recommendations | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ValidationUXPrototype | ArchitectureCommunicationVisualization | UXNavigationFindabilityValidation | ArchitectureDocumentationCommunication |